MisuseGovernmentGovernmentPrivilege AbuseEmployee Data InvolvedMulti-Stage ChainIdentity (basic)Government IDPHIHealth (basic)HighActive

Washington State Department of Social and Health Services

bd_837bd87b539d109a · schema v1 · pii pii-v1

Severity

High

Discovered

Mar 1, 2026

Filed

Jun 30, 2026

To disclose

17 weeks

Affected

8,600state residents only

Linked

2 filings

Confidence

69%

Full breach record for Washington State Department of Social and Health Services →5 incidents on file

Washington DSHS disclosed an insider incident where an employee accessed client PII (names, DOB, SSN, client numbers) for non-work reasons. Discovered March 2026. 8,600 WA residents affected. Employee terminated; law enforcement cooperating. Investigation ongoing.

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Washington clock✗ WA AG >90d17 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 890 days

discovery → filing · 17 weeks / 121 days

Sep 23, 2023

Begins

Mar 1, 2026

Discovered

Jun 30, 2026

Filed

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_3df2fd80f43ff10a2026-06-30Candidate

Name: Washington State Department of Social and Health Services
norm: washington state department of social and health

Name: Washington State Department of Social and Health Services
norm: washington state department of social and health
Industry: Governmentllm

Discovered: Mar 1, 2026
Breach occurred: Sep 23, 2023 – Apr 15, 2026
Undetected for: 890 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 1, 2026
Affected individuals: 8,600state-resident count only
Data types: Identity (basic)Government ID
Data elements: NameSocial Security numberDate of birthProtected health information
WA-stated cause: Unauthorized Access
WA-stated duration: lifecycle 500+dexposure 500+d
WA-stated discovery: Found while ongoing
Attack vector: Insider
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: Internal
Regulator citations: cooperating with state and local law enforcement
Initial access: insider_action

During the incident: Immediately terminated the employee’s access to DSHS systems
Investigated what personal information the employee had viewed
Cooperating with state and local law enforcement in their ongoing investigation
Changes made: Taking steps to implement additional safeguards
Review policies and procedures relating to data privacy and security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(121 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

HHS OCRJun 30 · first

Washington State AGJun 30 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA41515.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 30, 2026
Raw hash: c168c72f55f8d0ca0a3b8360b4fc7495f77baf71480421e7e138c5cdfb7b578a

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityWashington State Department of Social and Health Services

Victim entityWashington State Department of Social and Health Services

Incidentdiscovered Mar 1, 2026

Stated responseImmediately terminated the employee’s access to DSHS systems

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com